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                 SGU505 Prefixes and suffixes（询问在线版）                </h1>
                <p>时间限制：20s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：512MB</p>			</div>
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                                <h3>题目描述</h3><p><p></p>
<p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size: medium; "><span lang="EN-US" style="font-family: 'Times New Roman'; ">GAL</span><span style="font-family: 宋体; ">发现了</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">N</span><span style="font-family: 宋体; ">个特殊的字母序列，由小写字母组成。小</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">L</span><span style="font-family: 宋体; ">认为，对于两个字符串</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s1,s2</span><span style="font-family: 宋体; ">，若</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s1</span><span style="font-family: 宋体; ">是某个特殊序列的前缀，</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s2</span><span style="font-family: 宋体; ">是该特殊序列的后缀，则称</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s1,s2</span><span style="font-family: 宋体; ">被这个序列拥有。</span></span><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:Calibri"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: medium; "><span style="font-family: 宋体; ">现在小</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">L</span><span style="font-family: 宋体; ">给出</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">M</span><span style="font-family: 宋体; ">对</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s1,s2</span><span style="font-family: 宋体; ">，对于每对字符串，问它们被几个特殊序列拥有。</span></span><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:Calibri"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"></p></p><hr/><h3>输入格式</h3><p><p>&nbsp;<span style="font-size: medium; line-height: 18px; text-indent: 21pt; font-family: 宋体; ">第</span><span lang="EN-US" style="font-size: medium; line-height: 18px; text-indent: 21pt; font-family: 'Times New Roman'; ">1</span><span style="font-size: medium; line-height: 18px; text-indent: 21pt; font-family: 宋体; ">行一个整数</span><span lang="EN-US" style="font-size: medium; line-height: 18px; text-indent: 21pt; font-family: 'Times New Roman'; ">N</span><span style="font-size: medium; line-height: 18px; text-indent: 21pt; font-family: 宋体; ">。</span></p>
<p class="MsoNormal" style="text-indent: 21pt; line-height: 18px; "><span style="font-size: medium; "><span style="font-family: 宋体; ">接下来</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">N</span><span style="font-family: 宋体; ">行，每行一个字符串，代表</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">N</span><span style="font-family: 宋体; ">个特殊序列。</span></span><span lang="EN-US" style="font-family: 'Times New Roman'; "><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent: 21pt; line-height: 18px; "><span style="font-size: medium; "><span style="font-family: 宋体; ">第</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">N+2</span><span style="font-family: 宋体; ">行一个整数</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">M</span><span style="font-family: 宋体; ">。</span></span><span lang="EN-US" style="font-family: 'Times New Roman'; "><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent: 21pt; line-height: 18px; "><span style="font-size: medium; "><span style="font-family: 宋体; ">接下来</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">M</span><span style="font-family: 宋体; ">行每行一对</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s1,s2</span><span style="font-family: 宋体; ">用空格隔开。</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">S1,s2</span><span style="font-family: 宋体; ">是经过加密的。</span></span><span lang="EN-US" style="font-family: 'Times New Roman'; "><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent: 21pt; line-height: 18px; "><span style="font-size: medium; "><span style="font-family: 宋体; ">设上一问的答案为</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">lastans</span><span style="font-family: 宋体; ">。解密方法是将</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">s1,s2</span><span style="font-family: 宋体; ">所有字母向后移动</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">lastans</span><span style="font-family: 宋体; ">个单位，这时你要把小写字母表当作一个环，比如</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">z</span><span style="font-family: 宋体; ">的下一个字母是</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">a</span><span style="font-family: 宋体; ">。</span></span><span lang="EN-US" style="font-family: 'Times New Roman'; "><o:p></o:p></span></p>
<p class="MsoNormal"></p>
<p class="MsoNormal" style="text-indent: 21pt; line-height: 18px; "></p></p><hr/><h3>输出格式</h3><p><p><span style="font-size: medium; ">&nbsp;</span></p>
<div><span style="font-size: medium; "><br />
</span></div>
<div><span style="font-size: medium; "><span style="font-family: 宋体; line-height: 18px; text-indent: 28px; ">对于每次询问操作，输出一个非负整数表示答案。</span></span></div>
<div></div></p><hr/><h3>样例输入</h3><pre>3
aaaaa
abacabaa
avtobus
6
a a
y yy
yy y
zzzzz zzzz
zazb bzaz
abac a
</pre><hr/><h3>样例输出</h3><pre>2
2
1
1
0
1
</pre><hr/><h3>提示</h3><p><p><span style="font-size: medium; ">&nbsp;</span><a id="fck_paste_padding"><span style="font-size: medium; ">﻿</span></a><span style="font-size: medium; "><span style="font-family: 宋体; ">设</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">N</span><span style="font-family: 宋体; ">个特殊序列总长为</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">L1</span><span style="font-family: 宋体; ">，所有</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">M</span><span style="font-family: 宋体; ">组询问总长为</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">L2</span><span style="font-family: 宋体; ">。</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">L1</span><span style="font-family: 宋体; ">，</span><span lang="EN-US" style="font-family: 'Times New Roman'; ">L2&lt;=</span><span lang="EN-US" style="font-family: 'Courier New'; ">2000000.N&lt;=2000,M&lt;=100000</span></span></p></p><hr/><h3>题目来源</h3><p>By Hta</p>
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